Why does my Fluid simulation look like there is a floor where there isn't one?
There are a few things that could cause this to happen in fluid simulations. 1) Your domain is smaller than your obstacle, so your fluid boundaries are smaller. 2) You have an invisible obstacle that is beneath the fluid inflow. (unlikely). 3) You need to change the location of the fluid simulation bake. 4) You need to set the simulation quality to a higher number. I hope these settings work for you!